mendacious vs unveracious

mendacious

adj

  • False or untrue. 

  • Lying, untruthful or dishonest. 

unveracious

adj

  • Not veracious; untruthful; false. 

  • Fake, imitation. 

How often have the words mendacious and unveracious occurred in a corpus of books? (source: Google Ngram Viewer )